Silvertop velocity stacks

Threaded Mode | Linear Mode

Silvertop velocity stacks - trumpets?

08-28-2009, 12:19 PM

Post: #13

Jan Pedersen Offline

Super Moderator

Posts: 1,414
Joined: Sep 2004
Reputation: 0

jondee86 Wrote:
Chrisso Wrote:There are inherent issues with running unequal lenght trumpets as this may cause unequal air/fuel ratios in different cylinders. Slightly shaved might not make much difference, but if you had a 45mm on the last cylinder, and 60mm on the other 3 this could cause major issues!
Maybe... maybe not Some motorcycles run two longer and two shorter
trumpets. The theory is that by having the ram effect happen at different
rpm's, the torque peak becomes wider and lower. Makes for a broader
power band.

Cheers... jondee86

I saw that on a formula Atlantic 4AG and wondered why... Maybe I should try it out Smile

Sarcasme is just one of the things I offer Wink

Daily driver: '92 Toyota Carina E GTI
Rebuilt project: '86 Levin hatch
[Image: AEU86 AE86 - ]

« Next Oldest | Next Newest »

Messages In This Thread

Silvertop velocity stacks - trumpets? - byd1380 - 08-13-2009, 11:08 AM

[] - -Mister2- - 08-13-2009, 12:55 PM

Silvertop trumpets - byd1380 - 08-14-2009, 02:02 PM

[] - Nomuken - 08-14-2009, 09:15 PM

[] - raki - 08-15-2009, 06:21 AM

[] - Chrisso - 08-18-2009, 04:36 AM

Silvertop velocity stacks - trumpets? - byd1380 - 08-20-2009, 11:35 AM

[] - Nomuken - 08-20-2009, 02:58 PM

[] - Chrisso - 08-24-2009, 08:18 AM

[] - cue - 08-24-2009, 02:36 PM

[] - Chrisso - 08-28-2009, 04:43 AM

[] - jondee86 - 08-28-2009, 08:30 AM

[] - Jan Pedersen - 08-28-2009 12:19 PM

[] - cue - 08-28-2009, 12:52 PM

[] - jondee86 - 08-28-2009, 10:51 PM

[] - Nomuken - 08-31-2009, 10:43 AM

Trumpets - Toyyoseven - byd1380 - 09-16-2009, 12:35 PM

Possibly Related Threads...
Thread		Author	Replies	Views	Last Post
	20v Silvertop - New Haltech ECU & Couple of questions	20valver	10	2,616	05-26-2024 07:40 PM Last Post: totta Crolla
	20v Silvertop stock ignition timing and fueling maps	Lykowsky	5	13,784	07-18-2019 03:52 PM Last Post: oldeskewltoy
	20v silvertop idle issue	AlexFourTwenty	3	5,284	12-24-2017 03:27 AM Last Post: AlexFourTwenty
	stock injector deadtime for 4age 20v silvertop/blacktop injector	ditn	1	5,965	02-20-2016 11:48 AM Last Post: Bean
	20v silvertop exhaust manifold on 16v 2nd version tvis motor	Apsogos	17	22,787	11-22-2012 11:15 PM Last Post: Apsogos

User(s) browsing this thread: 2 Guest(s)